Commit Graph

10 Commits

Author SHA1 Message Date
Bananymous b924c85669 Kernel: DiskCache now requires sync to be called from kernel thread
This disables the scenario where user interrupts sync operation
possibly leaving the syncing in invalid state.
2023-09-27 00:32:13 +03:00
Bananymous b0c22b61ec Kernel: Writes to disk are not synchronous anymore
Implement "proper" DiskCache syncing
2023-09-11 01:25:16 +03:00
Bananymous a9cf9bceef Kernel: Rewrite DiskCache
We now cache only clean pages since I don't want to think about
syncing the disk later.
2023-07-27 22:22:39 +03:00
Bananymous e4509d9482 Kernel: DiskCache uses are now done without interrupts
This allows disk cache to not be invalid state after partial read/write
2023-07-27 18:52:51 +03:00
Bananymous 86df258365 Kernel: rework the whole PageTable structure
We now have page table structure for kernel memory which is shared
between all processes.
2023-07-05 23:41:35 +03:00
Bananymous 0d620f3e0f Kernel: Rewrite and optimize DiskCache
DiskCache now consists of PageCaches which are caches of contiguous
sectors. This allows the disk cache to be ordered and faster traversal.

We seem to have a problem somewhere during reading. The stack gets
corrupted.
2023-06-19 10:31:47 +03:00
Bananymous 8af390e0f6 Kernel: Big commit. Rewrite ELF loading code
We now load ELF files to VirtualRanges instead of using kmalloc.
We have only a fixed 1 MiB kmalloc for big allocations and this
allows loading files even when they don't fit in there.

This caused me to rewrite the whole ELF loading process since the
loaded ELF is not in memory mapped by every process.

Virtual ranges allow you to zero out the memory and to copy into
them from arbitary byte buffers.
2023-06-09 00:37:43 +03:00
Bananymous 0166af472b Kernel: DiskCache will try to shrink_to_fit after cache cleanup 2023-06-03 02:55:22 +03:00
Bananymous 884d986bd6 Kernel: DiskCache won't crash when running out of kmalloc memory 2023-06-03 02:36:20 +03:00
Bananymous 59b807189f Kernel: add basic disk cache
ATADevices now add disk cache to themselves
2023-06-03 02:23:14 +03:00